MIC2843A Description
Features The MIC2843A is a high efficiency linear White LED High Efficiency (no Voltage Boost losses) (WLED) driver designed to drive up to six WLEDs, greatly Dynamic Average Matching (DAM™) extending battery life for portable display backlighting Ultra Fast PWM™ control (200Hz to 500kHz) keypad backlighting, and camera flash in mobile devices. 3.0V to 5.5V The MIC2843A provides the highest possible efficiency as...
MIC2843A Key Features
- High Efficiency (no Voltage Boost losses) (WLED) driver designed to drive up to six WLEDs, greatly
- Dynamic Average Matching (DAM™) extending battery life for portable display backlighting
- Ultra Fast PWM™ control (200Hz to 500kHz) keypad backlighting, and camera flash in mobile devices
- Input voltage range: 3.0V to 5.5V The MIC2843A provides the highest possible efficiency as
- Dropout of 40mV at 20mA this architecture has no switching losses present in traditional charge pumps or inductive boost
- Matching better than ±1.5% (typical) MIC2843A provides six linear drivers which maintain
- Current Accuracy better than ±1.5% (typical) constant current for up to six WLEDs. It features a typical
- Maintains proper regulation regardless of how many dropout of 40mV at 20mA. This allows the WLEDs to be channels are uti
- Available in a 10-pin 2mm x 2mm Thin MLF® package noise/losses present with the use of boost circuitry. The MIC2843A fea